1 /* 2 * QEMU migration/snapshot declarations 3 * 4 * Copyright (c) 2009-2011 Red Hat, Inc. 5 * 6 * Original author: Juan Quintela <quintela@redhat.com> 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a copy 9 * of this software and associated documentation files (the "Software"), to deal 10 * in the Software without restriction, including without limitation the rights 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 * copies of the Software, and to permit persons to whom the Software is 13 * furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be included in 16 * all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24 * THE SOFTWARE. 25 */ 26 27 #ifndef QEMU_VMSTATE_H 28 #define QEMU_VMSTATE_H 29 30 #include "migration/qjson.h" 31 32 typedef void SaveStateHandler(QEMUFile *f, void *opaque); 33 typedef int LoadStateHandler(QEMUFile *f, void *opaque, int version_id); 34 35 typedef struct SaveVMHandlers { 36 /* This runs inside the iothread lock. */ 37 SaveStateHandler *save_state; 38 39 void (*cleanup)(void *opaque); 40 int (*save_live_complete_postcopy)(QEMUFile *f, void *opaque); 41 int (*save_live_complete_precopy)(QEMUFile *f, void *opaque); 42 43 /* This runs both outside and inside the iothread lock. */ 44 bool (*is_active)(void *opaque); 45 46 /* This runs outside the iothread lock in the migration case, and 47 * within the lock in the savevm case. The callback had better only 48 * use data that is local to the migration thread or protected 49 * by other locks. 50 */ 51 int (*save_live_iterate)(QEMUFile *f, void *opaque); 52 53 /* This runs outside the iothread lock! */ 54 int (*save_live_setup)(QEMUFile *f, void *opaque); 55 void (*save_live_pending)(QEMUFile *f, void *opaque, 56 uint64_t threshold_size, 57 uint64_t *non_postcopiable_pending, 58 uint64_t *postcopiable_pending); 59 LoadStateHandler *load_state; 60 } SaveVMHandlers; 61 62 int register_savevm(DeviceState *dev, 63 const char *idstr, 64 int instance_id, 65 int version_id, 66 SaveStateHandler *save_state, 67 LoadStateHandler *load_state, 68 void *opaque); 69 70 int register_savevm_live(DeviceState *dev, 71 const char *idstr, 72 int instance_id, 73 int version_id, 74 SaveVMHandlers *ops, 75 void *opaque); 76 77 void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque); 78 79 typedef struct VMStateInfo VMStateInfo; 80 typedef struct VMStateDescription VMStateDescription; 81 typedef struct VMStateField VMStateField; 82 83 /* VMStateInfo allows customized migration of objects that don't fit in 84 * any category in VMStateFlags. Additional information is always passed 85 * into get and put in terms of field and vmdesc parameters. However 86 * these two parameters should only be used in cases when customized 87 * handling is needed, such as QTAILQ. For primitive data types such as 88 * integer, field and vmdesc parameters should be ignored inside get/put. 89 */ 90 struct VMStateInfo { 91 const char *name; 92 int (*get)(QEMUFile *f, void *pv, size_t size, VMStateField *field); 93 int (*put)(QEMUFile *f, void *pv, size_t size, VMStateField *field, 94 QJSON *vmdesc); 95 }; 96 97 enum VMStateFlags { 98 /* Ignored */ 99 VMS_SINGLE = 0x001, 100 101 /* The struct member at opaque + VMStateField.offset is a pointer 102 * to the actual field (e.g. struct a { uint8_t *b; 103 * }). Dereference the pointer before using it as basis for 104 * further pointer arithmetic (see e.g. VMS_ARRAY). Does not 105 * affect the meaning of VMStateField.num_offset or 106 * VMStateField.size_offset; see VMS_VARRAY* and VMS_VBUFFER for 107 * those. */ 108 VMS_POINTER = 0x002, 109 110 /* The field is an array of fixed size. VMStateField.num contains 111 * the number of entries in the array. The size of each entry is 112 * given by VMStateField.size and / or opaque + 113 * VMStateField.size_offset; see VMS_VBUFFER and 114 * VMS_MULTIPLY. Each array entry will be processed individually 115 * (VMStateField.info.get()/put() if VMS_STRUCT is not set, 116 * recursion into VMStateField.vmsd if VMS_STRUCT is set). May not 117 * be combined with VMS_VARRAY*. */ 118 VMS_ARRAY = 0x004, 119 120 /* The field is itself a struct, containing one or more 121 * fields. Recurse into VMStateField.vmsd. Most useful in 122 * combination with VMS_ARRAY / VMS_VARRAY*, recursing into each 123 * array entry. */ 124 VMS_STRUCT = 0x008, 125 126 /* The field is an array of variable size. The int32_t at opaque + 127 * VMStateField.num_offset contains the number of entries in the 128 * array. See the VMS_ARRAY description regarding array handling 129 * in general. May not be combined with VMS_ARRAY or any other 130 * VMS_VARRAY*. */ 131 VMS_VARRAY_INT32 = 0x010, 132 133 /* Ignored */ 134 VMS_BUFFER = 0x020, 135 136 /* The field is a (fixed-size or variable-size) array of pointers 137 * (e.g. struct a { uint8_t *b[]; }). Dereference each array entry 138 * before using it. Note: Does not imply any one of VMS_ARRAY / 139 * VMS_VARRAY*; these need to be set explicitly. */ 140 VMS_ARRAY_OF_POINTER = 0x040, 141 142 /* The field is an array of variable size. The uint16_t at opaque 143 * + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS) 144 * contains the number of entries in the array. See the VMS_ARRAY 145 * description regarding array handling in general. May not be 146 * combined with VMS_ARRAY or any other VMS_VARRAY*. */ 147 VMS_VARRAY_UINT16 = 0x080, 148 149 /* The size of the individual entries (a single array entry if 150 * VMS_ARRAY or any of VMS_VARRAY* are set, or the field itself if 151 * neither is set) is variable (i.e. not known at compile-time), 152 * but the same for all entries. Use the int32_t at opaque + 153 * VMStateField.size_offset (subject to VMS_MULTIPLY) to determine 154 * the size of each (and every) entry. */ 155 VMS_VBUFFER = 0x100, 156 157 /* Multiply the entry size given by the int32_t at opaque + 158 * VMStateField.size_offset (see VMS_VBUFFER description) with 159 * VMStateField.size to determine the number of bytes to be 160 * allocated. Only valid in combination with VMS_VBUFFER. */ 161 VMS_MULTIPLY = 0x200, 162 163 /* The field is an array of variable size. The uint8_t at opaque + 164 * VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS) 165 * contains the number of entries in the array. See the VMS_ARRAY 166 * description regarding array handling in general. May not be 167 * combined with VMS_ARRAY or any other VMS_VARRAY*. */ 168 VMS_VARRAY_UINT8 = 0x400, 169 170 /* The field is an array of variable size. The uint32_t at opaque 171 * + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS) 172 * contains the number of entries in the array. See the VMS_ARRAY 173 * description regarding array handling in general. May not be 174 * combined with VMS_ARRAY or any other VMS_VARRAY*. */ 175 VMS_VARRAY_UINT32 = 0x800, 176 177 /* Fail loading the serialised VM state if this field is missing 178 * from the input. */ 179 VMS_MUST_EXIST = 0x1000, 180 181 /* When loading serialised VM state, allocate memory for the 182 * (entire) field. Only valid in combination with 183 * VMS_POINTER. Note: Not all combinations with other flags are 184 * currently supported, e.g. VMS_ALLOC|VMS_ARRAY_OF_POINTER won't 185 * cause the individual entries to be allocated. */ 186 VMS_ALLOC = 0x2000, 187 188 /* Multiply the number of entries given by the integer at opaque + 189 * VMStateField.num_offset (see VMS_VARRAY*) with VMStateField.num 190 * to determine the number of entries in the array. Only valid in 191 * combination with one of VMS_VARRAY*. */ 192 VMS_MULTIPLY_ELEMENTS = 0x4000, 193 }; 194 195 typedef enum { 196 MIG_PRI_DEFAULT = 0, 197 MIG_PRI_IOMMU, /* Must happen before PCI devices */ 198 MIG_PRI_MAX, 199 } MigrationPriority; 200 201 struct VMStateField { 202 const char *name; 203 size_t offset; 204 size_t size; 205 size_t start; 206 int num; 207 size_t num_offset; 208 size_t size_offset; 209 const VMStateInfo *info; 210 enum VMStateFlags flags; 211 const VMStateDescription *vmsd; 212 int version_id; 213 bool (*field_exists)(void *opaque, int version_id); 214 }; 215 216 struct VMStateDescription { 217 const char *name; 218 int unmigratable; 219 int version_id; 220 int minimum_version_id; 221 int minimum_version_id_old; 222 MigrationPriority priority; 223 LoadStateHandler *load_state_old; 224 int (*pre_load)(void *opaque); 225 int (*post_load)(void *opaque, int version_id); 226 void (*pre_save)(void *opaque); 227 bool (*needed)(void *opaque); 228 VMStateField *fields; 229 const VMStateDescription **subsections; 230 }; 231 232 extern const VMStateDescription vmstate_dummy; 233 234 extern const VMStateInfo vmstate_info_bool; 235 236 extern const VMStateInfo vmstate_info_int8; 237 extern const VMStateInfo vmstate_info_int16; 238 extern const VMStateInfo vmstate_info_int32; 239 extern const VMStateInfo vmstate_info_int64; 240 241 extern const VMStateInfo vmstate_info_uint8_equal; 242 extern const VMStateInfo vmstate_info_uint16_equal; 243 extern const VMStateInfo vmstate_info_int32_equal; 244 extern const VMStateInfo vmstate_info_uint32_equal; 245 extern const VMStateInfo vmstate_info_uint64_equal; 246 extern const VMStateInfo vmstate_info_int32_le; 247 248 extern const VMStateInfo vmstate_info_uint8; 249 extern const VMStateInfo vmstate_info_uint16; 250 extern const VMStateInfo vmstate_info_uint32; 251 extern const VMStateInfo vmstate_info_uint64; 252 253 /** Put this in the stream when migrating a null pointer.*/ 254 #define VMS_NULLPTR_MARKER (0x30U) /* '0' */ 255 extern const VMStateInfo vmstate_info_nullptr; 256 257 extern const VMStateInfo vmstate_info_float64; 258 extern const VMStateInfo vmstate_info_cpudouble; 259 260 extern const VMStateInfo vmstate_info_timer; 261 extern const VMStateInfo vmstate_info_buffer; 262 extern const VMStateInfo vmstate_info_unused_buffer; 263 extern const VMStateInfo vmstate_info_tmp; 264 extern const VMStateInfo vmstate_info_bitmap; 265 extern const VMStateInfo vmstate_info_qtailq; 266 267 #define type_check_2darray(t1,t2,n,m) ((t1(*)[n][m])0 - (t2*)0) 268 #define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0) 269 #define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0) 270 271 #define vmstate_offset_value(_state, _field, _type) \ 272 (offsetof(_state, _field) + \ 273 type_check(_type, typeof_field(_state, _field))) 274 275 #define vmstate_offset_pointer(_state, _field, _type) \ 276 (offsetof(_state, _field) + \ 277 type_check_pointer(_type, typeof_field(_state, _field))) 278 279 #define vmstate_offset_array(_state, _field, _type, _num) \ 280 (offsetof(_state, _field) + \ 281 type_check_array(_type, typeof_field(_state, _field), _num)) 282 283 #define vmstate_offset_2darray(_state, _field, _type, _n1, _n2) \ 284 (offsetof(_state, _field) + \ 285 type_check_2darray(_type, typeof_field(_state, _field), _n1, _n2)) 286 287 #define vmstate_offset_sub_array(_state, _field, _type, _start) \ 288 vmstate_offset_value(_state, _field[_start], _type) 289 290 #define vmstate_offset_buffer(_state, _field) \ 291 vmstate_offset_array(_state, _field, uint8_t, \ 292 sizeof(typeof_field(_state, _field))) 293 294 #define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \ 295 .name = (stringify(_field)), \ 296 .version_id = (_version), \ 297 .field_exists = (_test), \ 298 .size = sizeof(_type), \ 299 .info = &(_info), \ 300 .flags = VMS_SINGLE, \ 301 .offset = vmstate_offset_value(_state, _field, _type), \ 302 } 303 304 /* Validate state using a boolean predicate. */ 305 #define VMSTATE_VALIDATE(_name, _test) { \ 306 .name = (_name), \ 307 .field_exists = (_test), \ 308 .flags = VMS_ARRAY | VMS_MUST_EXIST, \ 309 .num = 0, /* 0 elements: no data, only run _test */ \ 310 } 311 312 #define VMSTATE_POINTER(_field, _state, _version, _info, _type) { \ 313 .name = (stringify(_field)), \ 314 .version_id = (_version), \ 315 .info = &(_info), \ 316 .size = sizeof(_type), \ 317 .flags = VMS_SINGLE|VMS_POINTER, \ 318 .offset = vmstate_offset_value(_state, _field, _type), \ 319 } 320 321 #define VMSTATE_POINTER_TEST(_field, _state, _test, _info, _type) { \ 322 .name = (stringify(_field)), \ 323 .info = &(_info), \ 324 .field_exists = (_test), \ 325 .size = sizeof(_type), \ 326 .flags = VMS_SINGLE|VMS_POINTER, \ 327 .offset = vmstate_offset_value(_state, _field, _type), \ 328 } 329 330 #define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\ 331 .name = (stringify(_field)), \ 332 .version_id = (_version), \ 333 .num = (_num), \ 334 .info = &(_info), \ 335 .size = sizeof(_type), \ 336 .flags = VMS_ARRAY, \ 337 .offset = vmstate_offset_array(_state, _field, _type, _num), \ 338 } 339 340 #define VMSTATE_2DARRAY(_field, _state, _n1, _n2, _version, _info, _type) { \ 341 .name = (stringify(_field)), \ 342 .version_id = (_version), \ 343 .num = (_n1) * (_n2), \ 344 .info = &(_info), \ 345 .size = sizeof(_type), \ 346 .flags = VMS_ARRAY, \ 347 .offset = vmstate_offset_2darray(_state, _field, _type, _n1, _n2), \ 348 } 349 350 #define VMSTATE_VARRAY_MULTIPLY(_field, _state, _field_num, _multiply, _info, _type) { \ 351 .name = (stringify(_field)), \ 352 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 353 .num = (_multiply), \ 354 .info = &(_info), \ 355 .size = sizeof(_type), \ 356 .flags = VMS_VARRAY_UINT32|VMS_MULTIPLY_ELEMENTS, \ 357 .offset = offsetof(_state, _field), \ 358 } 359 360 #define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\ 361 .name = (stringify(_field)), \ 362 .field_exists = (_test), \ 363 .num = (_num), \ 364 .info = &(_info), \ 365 .size = sizeof(_type), \ 366 .flags = VMS_ARRAY, \ 367 .offset = vmstate_offset_array(_state, _field, _type, _num),\ 368 } 369 370 #define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \ 371 .name = (stringify(_field)), \ 372 .version_id = (_version), \ 373 .num = (_num), \ 374 .info = &(_info), \ 375 .size = sizeof(_type), \ 376 .flags = VMS_ARRAY, \ 377 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \ 378 } 379 380 #define VMSTATE_ARRAY_INT32_UNSAFE(_field, _state, _field_num, _info, _type) {\ 381 .name = (stringify(_field)), \ 382 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 383 .info = &(_info), \ 384 .size = sizeof(_type), \ 385 .flags = VMS_VARRAY_INT32, \ 386 .offset = offsetof(_state, _field), \ 387 } 388 389 #define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\ 390 .name = (stringify(_field)), \ 391 .version_id = (_version), \ 392 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 393 .info = &(_info), \ 394 .size = sizeof(_type), \ 395 .flags = VMS_VARRAY_INT32|VMS_POINTER, \ 396 .offset = vmstate_offset_pointer(_state, _field, _type), \ 397 } 398 399 #define VMSTATE_VARRAY_UINT32(_field, _state, _field_num, _version, _info, _type) {\ 400 .name = (stringify(_field)), \ 401 .version_id = (_version), \ 402 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 403 .info = &(_info), \ 404 .size = sizeof(_type), \ 405 .flags = VMS_VARRAY_UINT32|VMS_POINTER, \ 406 .offset = vmstate_offset_pointer(_state, _field, _type), \ 407 } 408 409 #define VMSTATE_VARRAY_UINT32_ALLOC(_field, _state, _field_num, _version, _info, _type) {\ 410 .name = (stringify(_field)), \ 411 .version_id = (_version), \ 412 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 413 .info = &(_info), \ 414 .size = sizeof(_type), \ 415 .flags = VMS_VARRAY_UINT32|VMS_POINTER|VMS_ALLOC, \ 416 .offset = vmstate_offset_pointer(_state, _field, _type), \ 417 } 418 419 #define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\ 420 .name = (stringify(_field)), \ 421 .version_id = (_version), \ 422 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\ 423 .info = &(_info), \ 424 .size = sizeof(_type), \ 425 .flags = VMS_VARRAY_UINT16, \ 426 .offset = offsetof(_state, _field), \ 427 } 428 429 #define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \ 430 .name = (stringify(_field)), \ 431 .version_id = (_version), \ 432 .field_exists = (_test), \ 433 .vmsd = &(_vmsd), \ 434 .size = sizeof(_type), \ 435 .flags = VMS_STRUCT, \ 436 .offset = vmstate_offset_value(_state, _field, _type), \ 437 } 438 439 #define VMSTATE_STRUCT_POINTER_V(_field, _state, _version, _vmsd, _type) { \ 440 .name = (stringify(_field)), \ 441 .version_id = (_version), \ 442 .vmsd = &(_vmsd), \ 443 .size = sizeof(_type *), \ 444 .flags = VMS_STRUCT|VMS_POINTER, \ 445 .offset = vmstate_offset_pointer(_state, _field, _type), \ 446 } 447 448 #define VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, _version, _vmsd, _type) { \ 449 .name = (stringify(_field)), \ 450 .version_id = (_version), \ 451 .field_exists = (_test), \ 452 .vmsd = &(_vmsd), \ 453 .size = sizeof(_type *), \ 454 .flags = VMS_STRUCT|VMS_POINTER, \ 455 .offset = vmstate_offset_pointer(_state, _field, _type), \ 456 } 457 458 #define VMSTATE_ARRAY_OF_POINTER(_field, _state, _num, _version, _info, _type) {\ 459 .name = (stringify(_field)), \ 460 .version_id = (_version), \ 461 .num = (_num), \ 462 .info = &(_info), \ 463 .size = sizeof(_type), \ 464 .flags = VMS_ARRAY|VMS_ARRAY_OF_POINTER, \ 465 .offset = vmstate_offset_array(_state, _field, _type, _num), \ 466 } 467 468 #define VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(_f, _s, _n, _v, _vmsd, _type) { \ 469 .name = (stringify(_f)), \ 470 .version_id = (_v), \ 471 .num = (_n), \ 472 .vmsd = &(_vmsd), \ 473 .size = sizeof(_type *), \ 474 .flags = VMS_ARRAY|VMS_STRUCT|VMS_ARRAY_OF_POINTER, \ 475 .offset = vmstate_offset_array(_s, _f, _type*, _n), \ 476 } 477 478 #define VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, _num, _version, _vmsd, _type) { \ 479 .name = (stringify(_field)), \ 480 .version_id = (_version), \ 481 .num = (_num), \ 482 .vmsd = &(_vmsd), \ 483 .size = sizeof(_type), \ 484 .flags = VMS_STRUCT|VMS_ARRAY, \ 485 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \ 486 } 487 488 #define VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, _test, _version, _vmsd, _type) { \ 489 .name = (stringify(_field)), \ 490 .num = (_num), \ 491 .field_exists = (_test), \ 492 .version_id = (_version), \ 493 .vmsd = &(_vmsd), \ 494 .size = sizeof(_type), \ 495 .flags = VMS_STRUCT|VMS_ARRAY, \ 496 .offset = vmstate_offset_array(_state, _field, _type, _num),\ 497 } 498 499 #define VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, _test, \ 500 _version, _vmsd, _type) { \ 501 .name = (stringify(_field)), \ 502 .num = (_n1) * (_n2), \ 503 .field_exists = (_test), \ 504 .version_id = (_version), \ 505 .vmsd = &(_vmsd), \ 506 .size = sizeof(_type), \ 507 .flags = VMS_STRUCT | VMS_ARRAY, \ 508 .offset = vmstate_offset_2darray(_state, _field, _type, \ 509 _n1, _n2), \ 510 } 511 512 #define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \ 513 .name = (stringify(_field)), \ 514 .num_offset = vmstate_offset_value(_state, _field_num, uint8_t), \ 515 .version_id = (_version), \ 516 .vmsd = &(_vmsd), \ 517 .size = sizeof(_type), \ 518 .flags = VMS_STRUCT|VMS_VARRAY_UINT8, \ 519 .offset = offsetof(_state, _field), \ 520 } 521 522 /* a variable length array (i.e. _type *_field) but we know the 523 * length 524 */ 525 #define VMSTATE_STRUCT_VARRAY_POINTER_KNOWN(_field, _state, _num, _version, _vmsd, _type) { \ 526 .name = (stringify(_field)), \ 527 .num = (_num), \ 528 .version_id = (_version), \ 529 .vmsd = &(_vmsd), \ 530 .size = sizeof(_type), \ 531 .flags = VMS_STRUCT|VMS_ARRAY|VMS_POINTER, \ 532 .offset = offsetof(_state, _field), \ 533 } 534 535 #define VMSTATE_STRUCT_VARRAY_POINTER_INT32(_field, _state, _field_num, _vmsd, _type) { \ 536 .name = (stringify(_field)), \ 537 .version_id = 0, \ 538 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 539 .size = sizeof(_type), \ 540 .vmsd = &(_vmsd), \ 541 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \ 542 .offset = vmstate_offset_pointer(_state, _field, _type), \ 543 } 544 545 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT32(_field, _state, _field_num, _vmsd, _type) { \ 546 .name = (stringify(_field)), \ 547 .version_id = 0, \ 548 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 549 .size = sizeof(_type), \ 550 .vmsd = &(_vmsd), \ 551 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \ 552 .offset = vmstate_offset_pointer(_state, _field, _type), \ 553 } 554 555 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT16(_field, _state, _field_num, _vmsd, _type) { \ 556 .name = (stringify(_field)), \ 557 .version_id = 0, \ 558 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\ 559 .size = sizeof(_type), \ 560 .vmsd = &(_vmsd), \ 561 .flags = VMS_POINTER | VMS_VARRAY_UINT16 | VMS_STRUCT, \ 562 .offset = vmstate_offset_pointer(_state, _field, _type), \ 563 } 564 565 #define VMSTATE_STRUCT_VARRAY_INT32(_field, _state, _field_num, _version, _vmsd, _type) { \ 566 .name = (stringify(_field)), \ 567 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 568 .version_id = (_version), \ 569 .vmsd = &(_vmsd), \ 570 .size = sizeof(_type), \ 571 .flags = VMS_STRUCT|VMS_VARRAY_INT32, \ 572 .offset = offsetof(_state, _field), \ 573 } 574 575 #define VMSTATE_STRUCT_VARRAY_UINT32(_field, _state, _field_num, _version, _vmsd, _type) { \ 576 .name = (stringify(_field)), \ 577 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t), \ 578 .version_id = (_version), \ 579 .vmsd = &(_vmsd), \ 580 .size = sizeof(_type), \ 581 .flags = VMS_STRUCT|VMS_VARRAY_UINT32, \ 582 .offset = offsetof(_state, _field), \ 583 } 584 585 #define VMSTATE_STRUCT_VARRAY_ALLOC(_field, _state, _field_num, _version, _vmsd, _type) {\ 586 .name = (stringify(_field)), \ 587 .version_id = (_version), \ 588 .vmsd = &(_vmsd), \ 589 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 590 .size = sizeof(_type), \ 591 .flags = VMS_STRUCT|VMS_VARRAY_INT32|VMS_ALLOC|VMS_POINTER, \ 592 .offset = vmstate_offset_pointer(_state, _field, _type), \ 593 } 594 595 #define VMSTATE_STATIC_BUFFER(_field, _state, _version, _test, _start, _size) { \ 596 .name = (stringify(_field)), \ 597 .version_id = (_version), \ 598 .field_exists = (_test), \ 599 .size = (_size - _start), \ 600 .info = &vmstate_info_buffer, \ 601 .flags = VMS_BUFFER, \ 602 .offset = vmstate_offset_buffer(_state, _field) + _start, \ 603 } 604 605 #define VMSTATE_VBUFFER_MULTIPLY(_field, _state, _version, _test, \ 606 _field_size, _multiply) { \ 607 .name = (stringify(_field)), \ 608 .version_id = (_version), \ 609 .field_exists = (_test), \ 610 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 611 .size = (_multiply), \ 612 .info = &vmstate_info_buffer, \ 613 .flags = VMS_VBUFFER|VMS_POINTER|VMS_MULTIPLY, \ 614 .offset = offsetof(_state, _field), \ 615 } 616 617 #define VMSTATE_VBUFFER(_field, _state, _version, _test, _field_size) { \ 618 .name = (stringify(_field)), \ 619 .version_id = (_version), \ 620 .field_exists = (_test), \ 621 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\ 622 .info = &vmstate_info_buffer, \ 623 .flags = VMS_VBUFFER|VMS_POINTER, \ 624 .offset = offsetof(_state, _field), \ 625 } 626 627 #define VMSTATE_VBUFFER_UINT32(_field, _state, _version, _test, _field_size) { \ 628 .name = (stringify(_field)), \ 629 .version_id = (_version), \ 630 .field_exists = (_test), \ 631 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 632 .info = &vmstate_info_buffer, \ 633 .flags = VMS_VBUFFER|VMS_POINTER, \ 634 .offset = offsetof(_state, _field), \ 635 } 636 637 #define VMSTATE_VBUFFER_ALLOC_UINT32(_field, _state, _version, \ 638 _test, _field_size) { \ 639 .name = (stringify(_field)), \ 640 .version_id = (_version), \ 641 .field_exists = (_test), \ 642 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 643 .info = &vmstate_info_buffer, \ 644 .flags = VMS_VBUFFER|VMS_POINTER|VMS_ALLOC, \ 645 .offset = offsetof(_state, _field), \ 646 } 647 648 #define VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, _test, _version, _info, _size) { \ 649 .name = (stringify(_field)), \ 650 .version_id = (_version), \ 651 .field_exists = (_test), \ 652 .size = (_size), \ 653 .info = &(_info), \ 654 .flags = VMS_BUFFER, \ 655 .offset = offsetof(_state, _field), \ 656 } 657 658 #define VMSTATE_BUFFER_POINTER_UNSAFE(_field, _state, _version, _size) { \ 659 .name = (stringify(_field)), \ 660 .version_id = (_version), \ 661 .size = (_size), \ 662 .info = &vmstate_info_buffer, \ 663 .flags = VMS_BUFFER|VMS_POINTER, \ 664 .offset = offsetof(_state, _field), \ 665 } 666 667 /* Allocate a temporary of type 'tmp_type', set tmp->parent to _state 668 * and execute the vmsd on the temporary. Note that we're working with 669 * the whole of _state here, not a field within it. 670 * We compile time check that: 671 * That _tmp_type contains a 'parent' member that's a pointer to the 672 * '_state' type 673 * That the pointer is right at the start of _tmp_type. 674 */ 675 #define VMSTATE_WITH_TMP(_state, _tmp_type, _vmsd) { \ 676 .name = "tmp", \ 677 .size = sizeof(_tmp_type) + \ 678 QEMU_BUILD_BUG_ON_ZERO(offsetof(_tmp_type, parent) != 0) + \ 679 type_check_pointer(_state, \ 680 typeof_field(_tmp_type, parent)), \ 681 .vmsd = &(_vmsd), \ 682 .info = &vmstate_info_tmp, \ 683 } 684 685 #define VMSTATE_UNUSED_BUFFER(_test, _version, _size) { \ 686 .name = "unused", \ 687 .field_exists = (_test), \ 688 .version_id = (_version), \ 689 .size = (_size), \ 690 .info = &vmstate_info_unused_buffer, \ 691 .flags = VMS_BUFFER, \ 692 } 693 694 /* Discard size * field_num bytes, where field_num is a uint32 member */ 695 #define VMSTATE_UNUSED_VARRAY_UINT32(_state, _test, _version, _field_num, _size) {\ 696 .name = "unused", \ 697 .field_exists = (_test), \ 698 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 699 .version_id = (_version), \ 700 .size = (_size), \ 701 .info = &vmstate_info_unused_buffer, \ 702 .flags = VMS_VARRAY_UINT32 | VMS_BUFFER, \ 703 } 704 705 /* _field_size should be a int32_t field in the _state struct giving the 706 * size of the bitmap _field in bits. 707 */ 708 #define VMSTATE_BITMAP(_field, _state, _version, _field_size) { \ 709 .name = (stringify(_field)), \ 710 .version_id = (_version), \ 711 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\ 712 .info = &vmstate_info_bitmap, \ 713 .flags = VMS_VBUFFER|VMS_POINTER, \ 714 .offset = offsetof(_state, _field), \ 715 } 716 717 /* For migrating a QTAILQ. 718 * Target QTAILQ needs be properly initialized. 719 * _type: type of QTAILQ element 720 * _next: name of QTAILQ entry field in QTAILQ element 721 * _vmsd: VMSD for QTAILQ element 722 * size: size of QTAILQ element 723 * start: offset of QTAILQ entry in QTAILQ element 724 */ 725 #define VMSTATE_QTAILQ_V(_field, _state, _version, _vmsd, _type, _next) \ 726 { \ 727 .name = (stringify(_field)), \ 728 .version_id = (_version), \ 729 .vmsd = &(_vmsd), \ 730 .size = sizeof(_type), \ 731 .info = &vmstate_info_qtailq, \ 732 .offset = offsetof(_state, _field), \ 733 .start = offsetof(_type, _next), \ 734 } 735 736 /* _f : field name 737 _f_n : num of elements field_name 738 _n : num of elements 739 _s : struct state name 740 _v : version 741 */ 742 743 #define VMSTATE_SINGLE(_field, _state, _version, _info, _type) \ 744 VMSTATE_SINGLE_TEST(_field, _state, NULL, _version, _info, _type) 745 746 #define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type) \ 747 VMSTATE_STRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type) 748 749 #define VMSTATE_STRUCT_POINTER(_field, _state, _vmsd, _type) \ 750 VMSTATE_STRUCT_POINTER_V(_field, _state, 0, _vmsd, _type) 751 752 #define VMSTATE_STRUCT_POINTER_TEST(_field, _state, _test, _vmsd, _type) \ 753 VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, 0, _vmsd, _type) 754 755 #define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) \ 756 VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, NULL, _version, \ 757 _vmsd, _type) 758 759 #define VMSTATE_STRUCT_2DARRAY(_field, _state, _n1, _n2, _version, \ 760 _vmsd, _type) \ 761 VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, NULL, \ 762 _version, _vmsd, _type) 763 764 #define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) \ 765 VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, NULL, _version, _info, \ 766 _size) 767 768 #define VMSTATE_BOOL_V(_f, _s, _v) \ 769 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_bool, bool) 770 771 #define VMSTATE_INT8_V(_f, _s, _v) \ 772 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t) 773 #define VMSTATE_INT16_V(_f, _s, _v) \ 774 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t) 775 #define VMSTATE_INT32_V(_f, _s, _v) \ 776 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t) 777 #define VMSTATE_INT64_V(_f, _s, _v) \ 778 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t) 779 780 #define VMSTATE_UINT8_V(_f, _s, _v) \ 781 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t) 782 #define VMSTATE_UINT16_V(_f, _s, _v) \ 783 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t) 784 #define VMSTATE_UINT32_V(_f, _s, _v) \ 785 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t) 786 #define VMSTATE_UINT64_V(_f, _s, _v) \ 787 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t) 788 789 #define VMSTATE_BOOL(_f, _s) \ 790 VMSTATE_BOOL_V(_f, _s, 0) 791 792 #define VMSTATE_INT8(_f, _s) \ 793 VMSTATE_INT8_V(_f, _s, 0) 794 #define VMSTATE_INT16(_f, _s) \ 795 VMSTATE_INT16_V(_f, _s, 0) 796 #define VMSTATE_INT32(_f, _s) \ 797 VMSTATE_INT32_V(_f, _s, 0) 798 #define VMSTATE_INT64(_f, _s) \ 799 VMSTATE_INT64_V(_f, _s, 0) 800 801 #define VMSTATE_UINT8(_f, _s) \ 802 VMSTATE_UINT8_V(_f, _s, 0) 803 #define VMSTATE_UINT16(_f, _s) \ 804 VMSTATE_UINT16_V(_f, _s, 0) 805 #define VMSTATE_UINT32(_f, _s) \ 806 VMSTATE_UINT32_V(_f, _s, 0) 807 #define VMSTATE_UINT64(_f, _s) \ 808 VMSTATE_UINT64_V(_f, _s, 0) 809 810 #define VMSTATE_UINT8_EQUAL(_f, _s) \ 811 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint8_equal, uint8_t) 812 813 #define VMSTATE_UINT16_EQUAL(_f, _s) \ 814 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint16_equal, uint16_t) 815 816 #define VMSTATE_UINT16_EQUAL_V(_f, _s, _v) \ 817 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16_equal, uint16_t) 818 819 #define VMSTATE_INT32_EQUAL(_f, _s) \ 820 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_equal, int32_t) 821 822 #define VMSTATE_UINT32_EQUAL_V(_f, _s, _v) \ 823 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32_equal, uint32_t) 824 825 #define VMSTATE_UINT32_EQUAL(_f, _s) \ 826 VMSTATE_UINT32_EQUAL_V(_f, _s, 0) 827 828 #define VMSTATE_UINT64_EQUAL_V(_f, _s, _v) \ 829 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64_equal, uint64_t) 830 831 #define VMSTATE_UINT64_EQUAL(_f, _s) \ 832 VMSTATE_UINT64_EQUAL_V(_f, _s, 0) 833 834 #define VMSTATE_INT32_POSITIVE_LE(_f, _s) \ 835 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t) 836 837 #define VMSTATE_INT8_TEST(_f, _s, _t) \ 838 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int8, int8_t) 839 840 #define VMSTATE_INT16_TEST(_f, _s, _t) \ 841 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int16, int16_t) 842 843 #define VMSTATE_INT32_TEST(_f, _s, _t) \ 844 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int32, int32_t) 845 846 #define VMSTATE_INT64_TEST(_f, _s, _t) \ 847 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int64, int64_t) 848 849 #define VMSTATE_UINT8_TEST(_f, _s, _t) \ 850 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint8, uint8_t) 851 852 #define VMSTATE_UINT16_TEST(_f, _s, _t) \ 853 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint16, uint16_t) 854 855 #define VMSTATE_UINT32_TEST(_f, _s, _t) \ 856 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t) 857 858 #define VMSTATE_UINT64_TEST(_f, _s, _t) \ 859 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint64, uint64_t) 860 861 862 #define VMSTATE_FLOAT64_V(_f, _s, _v) \ 863 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_float64, float64) 864 865 #define VMSTATE_FLOAT64(_f, _s) \ 866 VMSTATE_FLOAT64_V(_f, _s, 0) 867 868 #define VMSTATE_TIMER_PTR_TEST(_f, _s, _test) \ 869 VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *) 870 871 #define VMSTATE_TIMER_PTR_V(_f, _s, _v) \ 872 VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *) 873 874 #define VMSTATE_TIMER_PTR(_f, _s) \ 875 VMSTATE_TIMER_PTR_V(_f, _s, 0) 876 877 #define VMSTATE_TIMER_PTR_ARRAY(_f, _s, _n) \ 878 VMSTATE_ARRAY_OF_POINTER(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer *) 879 880 #define VMSTATE_TIMER_TEST(_f, _s, _test) \ 881 VMSTATE_SINGLE_TEST(_f, _s, _test, 0, vmstate_info_timer, QEMUTimer) 882 883 #define VMSTATE_TIMER_V(_f, _s, _v) \ 884 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_timer, QEMUTimer) 885 886 #define VMSTATE_TIMER(_f, _s) \ 887 VMSTATE_TIMER_V(_f, _s, 0) 888 889 #define VMSTATE_TIMER_ARRAY(_f, _s, _n) \ 890 VMSTATE_ARRAY(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer) 891 892 #define VMSTATE_BOOL_ARRAY_V(_f, _s, _n, _v) \ 893 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_bool, bool) 894 895 #define VMSTATE_BOOL_ARRAY(_f, _s, _n) \ 896 VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0) 897 898 #define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v) \ 899 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t) 900 901 #define VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 902 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint16, uint16_t) 903 904 #define VMSTATE_UINT16_ARRAY(_f, _s, _n) \ 905 VMSTATE_UINT16_ARRAY_V(_f, _s, _n, 0) 906 907 #define VMSTATE_UINT16_2DARRAY(_f, _s, _n1, _n2) \ 908 VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, 0) 909 910 #define VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 911 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint8, uint8_t) 912 913 #define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v) \ 914 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t) 915 916 #define VMSTATE_UINT8_ARRAY(_f, _s, _n) \ 917 VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0) 918 919 #define VMSTATE_UINT8_SUB_ARRAY(_f, _s, _start, _num) \ 920 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint8, uint8_t) 921 922 #define VMSTATE_UINT8_2DARRAY(_f, _s, _n1, _n2) \ 923 VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, 0) 924 925 #define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v) \ 926 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t) 927 928 #define VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 929 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint32, uint32_t) 930 931 #define VMSTATE_UINT32_ARRAY(_f, _s, _n) \ 932 VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0) 933 934 #define VMSTATE_UINT32_2DARRAY(_f, _s, _n1, _n2) \ 935 VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, 0) 936 937 #define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v) \ 938 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t) 939 940 #define VMSTATE_UINT64_ARRAY(_f, _s, _n) \ 941 VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0) 942 943 #define VMSTATE_UINT64_2DARRAY(_f, _s, _n1, _n2) \ 944 VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, 0) 945 946 #define VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 947 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint64, uint64_t) 948 949 #define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v) \ 950 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t) 951 952 #define VMSTATE_INT16_ARRAY(_f, _s, _n) \ 953 VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0) 954 955 #define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v) \ 956 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t) 957 958 #define VMSTATE_INT32_ARRAY(_f, _s, _n) \ 959 VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0) 960 961 #define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num) \ 962 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t) 963 964 #define VMSTATE_INT64_ARRAY_V(_f, _s, _n, _v) \ 965 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int64, int64_t) 966 967 #define VMSTATE_INT64_ARRAY(_f, _s, _n) \ 968 VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0) 969 970 #define VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, _v) \ 971 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_float64, float64) 972 973 #define VMSTATE_FLOAT64_ARRAY(_f, _s, _n) \ 974 VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, 0) 975 976 #define VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, _v) \ 977 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_cpudouble, CPU_DoubleU) 978 979 #define VMSTATE_CPUDOUBLE_ARRAY(_f, _s, _n) \ 980 VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, 0) 981 982 #define VMSTATE_BUFFER_V(_f, _s, _v) \ 983 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f))) 984 985 #define VMSTATE_BUFFER(_f, _s) \ 986 VMSTATE_BUFFER_V(_f, _s, 0) 987 988 #define VMSTATE_PARTIAL_BUFFER(_f, _s, _size) \ 989 VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size) 990 991 #define VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, _v) \ 992 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, _start, sizeof(typeof_field(_s, _f))) 993 994 #define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \ 995 VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, 0) 996 997 #define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size) \ 998 VMSTATE_VBUFFER(_f, _s, 0, NULL, _size) 999 1000 #define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size) \ 1001 VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, _size) 1002 1003 #define VMSTATE_BUFFER_TEST(_f, _s, _test) \ 1004 VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f))) 1005 1006 #define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size) \ 1007 VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size) 1008 1009 #define VMSTATE_UNUSED_V(_v, _size) \ 1010 VMSTATE_UNUSED_BUFFER(NULL, _v, _size) 1011 1012 #define VMSTATE_UNUSED(_size) \ 1013 VMSTATE_UNUSED_V(0, _size) 1014 1015 #define VMSTATE_UNUSED_TEST(_test, _size) \ 1016 VMSTATE_UNUSED_BUFFER(_test, 0, _size) 1017 1018 #define VMSTATE_END_OF_LIST() \ 1019 {} 1020 1021 #define SELF_ANNOUNCE_ROUNDS 5 1022 1023 int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd, 1024 void *opaque, int version_id); 1025 void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd, 1026 void *opaque, QJSON *vmdesc); 1027 1028 bool vmstate_save_needed(const VMStateDescription *vmsd, void *opaque); 1029 1030 /* Returns: 0 on success, -1 on failure */ 1031 int vmstate_register_with_alias_id(DeviceState *dev, int instance_id, 1032 const VMStateDescription *vmsd, 1033 void *base, int alias_id, 1034 int required_for_version, 1035 Error **errp); 1036 1037 /* Returns: 0 on success, -1 on failure */ 1038 static inline int vmstate_register(DeviceState *dev, int instance_id, 1039 const VMStateDescription *vmsd, 1040 void *opaque) 1041 { 1042 return vmstate_register_with_alias_id(dev, instance_id, vmsd, 1043 opaque, -1, 0, NULL); 1044 } 1045 1046 void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd, 1047 void *opaque); 1048 1049 struct MemoryRegion; 1050 void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev); 1051 void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev); 1052 void vmstate_register_ram_global(struct MemoryRegion *memory); 1053 1054 static inline 1055 int64_t self_announce_delay(int round) 1056 { 1057 assert(round < SELF_ANNOUNCE_ROUNDS && round > 0); 1058 /* delay 50ms, 150ms, 250ms, ... */ 1059 return 50 + (SELF_ANNOUNCE_ROUNDS - round - 1) * 100; 1060 } 1061 1062 void dump_vmstate_json_to_file(FILE *out_fp); 1063 1064 bool vmstate_check_only_migratable(const VMStateDescription *vmsd); 1065 1066 #endif 1067